I will never understand how someone can be R&R and certain Francis is the pope. It doesn't make sense. Accusing sedevacantists of mixing infallibility with indefectibility is just dodging the issue with the latter by attacking the strawman of the former. Fact of the matter is, if Vatican 2 is a legitimate Church council and Francis is a legitimate pope, then the Church has been taken over by non-Catholics and has promulgated teachings and rites which are harmful to faith - by definition, a defection.
Inb4 "Paul VI actually promulgated the Novus Ordo for the Conciliar Church, not the Catholic Church, even though he clearly said otherwise". You could dismiss any action a pope has ever made under that ridiculous logic. "The Council of Nicaea was actually a council of the fake Conciliar Church, not the Catholic Church" etc. Ridiculous stuff.